Base | Representation |
---|---|
bin | 100000000110001111… |
… | …1010000000111110101 |
3 | 20120220210001210100110 |
4 | 1000030133100013311 |
5 | 2112131310331304 |
6 | 51355431333233 |
7 | 4660060540341 |
oct | 1001437200765 |
9 | 216823053313 |
10 | 68928995829 |
11 | 27261691861 |
12 | 11438221219 |
13 | 66665a9885 |
14 | 349c6a4621 |
15 | 1bd65a6289 |
hex | 100c7d01f5 |
68928995829 has 8 divisors (see below), whose sum is σ = 94042661152. Its totient is φ = 44883997200.
The previous prime is 68928995797. The next prime is 68928995843. The reversal of 68928995829 is 92859982986.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68928995829 - 25 = 68928995797 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68928995899) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267166522 + ... + 267166779.
It is an arithmetic number, because the mean of its divisors is an integer number (11755332644).
Almost surely, 268928995829 is an apocalyptic number.
It is an amenable number.
68928995829 is a deficient number, since it is larger than the sum of its proper divisors (25113665323).
68928995829 is a wasteful number, since it uses less digits than its factorization.
68928995829 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 534333347.
The product of its digits is 403107840, while the sum is 75.
The spelling of 68928995829 in words is "sixty-eight billion, nine hundred twenty-eight million, nine hundred ninety-five thousand, eight hundred twenty-nine".
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